Demodulation reference signal bundling with antenna switching

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a nominal time domain window duration and at least one of a quantity of nominal time domain windows or a quantity of actual time domain windows for demodulation reference signal bundling. The UE may calculate, in accordance with the quantity of nominal time domain windows being a single nominal time domain window or the quantity of actual time domain windows being a single actual time domain window, and in accordance with an indication that antenna switching is enabled, an adjusted nominal time domain window duration in accordance with applying a parameter to the nominal time domain window duration. The UE may calculate an adjusted quantity of nominal time domain windows and may identify a plurality of actual time domain windows. Numerous other aspects are described.

What is claimed is: 
     
         1 . A user equipment (UE) for wireless communication, comprising:
 one or more memories; and   one or more processors, coupled to the one or more memories, configured to cause the UE to:
 identify a nominal time domain window duration and at least one of a quantity of nominal time domain windows or a quantity of actual time domain windows for demodulation reference signal bundling; 
 calculate, in accordance with the quantity of nominal time domain windows being a single nominal time domain window or the quantity of actual time domain windows being a single actual time domain window, and in accordance with an indication that antenna switching is enabled, an adjusted nominal time domain window duration in accordance with applying a parameter to the nominal time domain window duration; 
 calculate an adjusted quantity of nominal time domain windows in accordance with the adjusted nominal time domain window duration; 
 identify a plurality of actual time domain windows in accordance with the adjusted quantity of nominal time domain windows; and 
 transmit, to a network node, using the plurality of actual time domain windows, a communication using demodulation reference signal bundling. 
   
     
     
         2 . The UE of  claim 1 , wherein the one or more processors, to cause the UE to calculate the adjusted nominal time domain window duration in accordance with applying the parameter to the nominal time domain window duration, are configured to cause the UE to calculate the adjusted nominal time domain window duration in accordance with dividing the nominal time domain window duration by the parameter. 
     
     
         3 . The UE of  claim 2 , wherein the parameter is equal to two, and the plurality of actual time domain windows is two time domain windows. 
     
     
         4 . The UE of  claim 2 , wherein the one or more processors, to cause the UE to calculate the adjusted nominal time domain window duration, are configured to cause the UE to round, in accordance with the adjusted nominal time domain window duration not being equal to an integer, the adjusted nominal time domain window duration to a next largest integer. 
     
     
         5 . The UE of  claim 1 , wherein the one or more processors are further configured to cause the UE to transmit, to the network node, an indication that the UE is configured to perform antenna switching. 
     
     
         6 . The UE of  claim 5 , wherein the indication that the UE is configured to perform antenna switching includes an indication of an antenna switching gap duration. 
     
     
         7 . The UE of  claim 1 , wherein the one or more processors are further configured to cause the UE to receive, from the network node, an indication to enable antenna switching or an indication to disable antenna switching. 
     
     
         8 . The UE of  claim 1 , wherein the one or more processors are further configured to cause the UE to enable antenna switching or disable antenna switching in accordance with a default value that indicates to enable antenna switching or that indicates to disable antenna switching and in accordance with identifying that an indication to enable antenna switching or an indication to disable the antenna switching has not been received from the network node. 
     
     
         9 . The UE of  claim 1 , wherein the one or more processors are further configured to cause the UE to obtain a network configuration associated with a nominal time domain window duration that indicates to disable antenna switching. 
     
     
         10 . A user equipment (UE) for wireless communication, comprising:
 one or more memories; and   one or more processors, coupled to the one or more memories, configured to cause the UE to:
 identify a nominal time domain window duration and a quantity of nominal time domain windows for demodulation reference signal bundling; 
 calculate, in accordance with an antenna switching event occurring at an antenna switching event location, another antenna switching event location in accordance with the quantity of nominal time domain windows being equal to a single nominal time domain window and in accordance with an indication that antenna switching is enabled; 
 identify a plurality of actual time domain windows in accordance with the antenna switching event causing a change to at least one of a power consistence or a phase continuity; and 
 transmit, to a network node, using the plurality of actual time domain windows and in accordance with the other antenna switching event location, a communication using demodulation reference signal bundling. 
   
     
     
         11 . The UE of  claim 10 , wherein the one or more processors, to cause the UE to calculate the other antenna switching event location, are configured to cause the UE to:
 divide a quantity of slots associated with the communication by a parameter; and   set the other antenna switching event location to a slot location that is equal to the quantity of slots associated with the communication divided by the parameter.   
     
     
         12 . The UE of  claim 11 , wherein the parameter is equal to two. 
     
     
         13 . The UE of  claim 12 , wherein the one or more processors are further configured to cause the UE to:
 identify that the quantity of slots associated with the communication is not equal to an integer; and   round the slot location to a slot location that corresponds to a next largest integer, wherein the one or more processors, to set the other antenna switching event location to the slot location, are configured to set the other antenna switching event location to the slot location that corresponds to the next largest integer.   
     
     
         14 . The UE of  claim 10 , wherein the one or more processors are further configured to cause the UE to transmit, to the network node, an indication that the UE is configured to perform antenna switching. 
     
     
         15 . The UE of  claim 14 , wherein the indication that the UE is configured to perform antenna switching includes an indication of an antenna switching gap duration. 
     
     
         16 . The UE of  claim 10 , wherein the one or more processors are further configured to cause the UE to receive, from the network node, an indication to enable antenna switching or an indication to disable antenna switching. 
     
     
         17 . The UE of  claim 10 , wherein the one or more processors are further configured to cause the UE to enable antenna switching or disable antenna switching in accordance with a default value that indicates to enable antenna switching or that indicates to disable antenna switching and in accordance with identifying that an indication to enable the antenna switching or an indication to disable the antenna switching has not been received from the network node. 
     
     
         18 . A user equipment (UE) for wireless communication, comprising:
 one or more memories; and   one or more processors, coupled to the one or more memories, configured to cause the UE to:
 identify an occurrence of an event that causes a change to at least one of a power consistency or a phase continuity; and 
 transmit, to a network node, in accordance with the occurrence of the event that causes the change to at least one of the power consistency or the phase continuity, a communication using demodulation reference signal bundling. 
   
     
     
         19 . The UE of  claim 18 , wherein the event is an antenna switching event. 
     
     
         20 . The UE of  claim 18 , wherein the event is associated with a restart of a physical uplink shared channel window enabled condition or associated with a physical uplink control channel window enabled condition.